19962239768 has 16 divisors (see below), whose sum is σ = 37667604480. Its totient is φ = 9917545248.

The previous prime is 19962239761. The next prime is 19962239881. The reversal of 19962239768 is 86793226991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19962239768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19962239761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945496 + ... + 7948007.

It is an arithmetic number, because the mean of its divisors is an integer number (2354225280).

Almost surely, 2^19962239768 is an apocalyptic number.

It is an amenable number.

19962239768 is a deficient number, since it is larger than the sum of its proper divisors (17705364712).

19962239768 is a wasteful number, since it uses less digits than its factorization.

19962239768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893666 (or 15893662 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 62.

The spelling of 19962239768 in words is "nineteen billion, nine hundred sixty-two million, two hundred thirty-nine thousand, seven hundred sixty-eight".